A129915 - cp's OEIS frontend

A129915 Irregular triangle read by rows: T(n, k) = f(n, A113474(n-1) - k), where f(n, k) = (n-1)!/2^k if (n-1)!/2^k is an integer, otherwise f(n, k) = 0.

n	a(n)
1	1
2	1
3	1
4	2
5	3
6	6
7	3
8	6
9	12
10	24
11	15
12	30
13	60
14	120
15	45
16	90
17	180
18	360
19	720
20	315
21	630
22	1260
23	2520
24	5040
25	315
26	630
27	1260
28	2520
29	5040
30	10080
31	20160
32	40320
33	2835
34	5670
35	11340
36	22680
37	45360
38	90720
39	181440
40	362880
41	14175
42	28350
43	56700
44	113400
45	226800
46	453600

[1, 1, 1, 2, 3, 6, 3, 6, 12, 24, 15, 30, 60, 120, 45, 90, 180, 360, 720, 315, 630, 1260, 2520, 5040, 315, 630, 1260, 2520, 5040, 10080, 20160, 40320, 2835, 5670, 11340, 22680, 45360, 90720, 181440, 362880, 14175, 28350, 56700, 113400, 226800, 453600]

cp's OEIS Frontend

A129915 Irregular triangle read by rows: T(n, k) = f(n, A113474(n-1) - k), where f(n, k) = (n-1)!/2^k if (n-1)!/2^k is an integer, otherwise f(n, k) = 0.

Table of values

List of values